The difference between Grouchy and Morose
When used as adjectives, grouchy means irritable, whereas morose means sullen, gloomy.
check bellow for the other definitions of Grouchy and Morose
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Grouchy as an adjective (originally, student slang):
Irritable; easily upset; angry; tending to complain.
Examples:
"His boss gets grouchy when deadlines draw near."
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Morose as an adjective:
Sullen, gloomy; showing a brooding ill humour.